OK..here I go again on my rant about not doing something unless you've got the proper tools...I know there are other ways to do things but I almost always purchase the proper tools for the job unless Im in an extreme pinch. Buying these tools can be a bit expensive but you must also realize that alot of these tools are not bike specific. Tools are always a great investment. Think of it this way. You can spend $400 for a rebuild or whatever and let the other guy pay for his tools and wait on him to finish it or you can purchase the tools, parts, and misc. chemicals/bonding agents for the same $400 and do it yourself at your own pace ( maybe 1 night / maybe 1 month idk ). Anyways then maybe your friends will be coming to you for lets say $300 a rebuild and then your off and running. Don't let the motor/gears scare you away. Its not hard with the right tools ( which inc a manual ) and you'll be proud of yourself when you accomplish it on your own. One piece of advice that I do have for you aside from the taking pictures after each step of the way, or preferably if you've got a camcorder just video taping the disassembly process stopping to point out where things go, is to use several ziplock baggies labeling each gear location, throwing the misc. nuts/washers/bolts that came from that location in there with the gear itself. Good luck and remember we are all here if you get stuck and need help!!